Temel İlkeleri C# ReadOnlyCollectionBase Nasıl Kullanılır

Temel İlkeleri C# ReadOnlyCollectionBase Nasıl Kullanılır

Blog Article

This class makes the underlying collection available through the InnerList property, which is intended for use only by classes that are derived directly from ReadOnlyCollectionBase. The derived class must ensure that its own users cannot modify the underlying collection.

In programs, an immutable collection gönül be used with less copying—we do hamiş need to worry about it being modified. This birey make programs simpler and easier to reason about.

Bu tür senaryolarda, IStructuralEquatable arabirimi sayesinde koleksiyonların yapkaloriı ve derunğini essah bir şekilde zıtlaştırarak infaz performansını zaitrabilir ve bilgi manipülasyon işlemlemlerini muteber bir şekilde gerçekleştirebilirsiniz.

Important Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Sum(IEnumerable, Func) Computes the sum of the sequence of Int32 values that are obtained by invoking a transform function on each element of the input sequence.

Suppose you need to return a list of all authors from the database as shown in the code snippet given below.

Koleksiyonların Strüktürel Muhaliflaştırması: IStructuralEquatable arabirimi, özellikle diziler ve koleksiyonlar gibi yapısal data yapılarının hakkındalaştırılması muhtevain kullanılır.

In my example I exposed it all, but you don't have to do this. You can make it read-only if you want, or validate additions to C# ReadOnlyCollectionBase Kullanımı the list, prior to adding them.

C# IStructuralEquatable arabirimini uygulayan bir özel derme klası oluşturarak, nasıl konstrüktif müsavat kontrolörü mimarilacağını anlamak önemlidir. Aşağıdaki örnek, bu konuyu daha uygun anlamanıza yardımcı olacaktır:

What is the term for when C# ReadOnlyCollectionBase Nedir a hyperlink maliciously opens different URL from URL displayed when hovered over?

ICollection is such abstraction C# ReadOnlyCollectionBase Nasıl Kullanılır and you could say that ICollection does not have an exact corresponding peer in the generic world; IEnumerable is the closest.

However, that doesn't mean that the ReadOnlyCollectionBase class isn't useful. For instance, by leveraging the C# ReadOnlyCollectionBase Nasıl Kullanılır InnerList property, you birey create a collection that supports whatever custom functionality you need. Perhaps you want to create a collection for audit log entries where users birey C# ReadOnlyCollectionBase Nerelerde Kullanılıyor add but not remove items.

You yaşama loop over the ReadOnlyCollection using the foreach-loop. A for-loop is also possible with the Count property and indexer. CopyTo provides a way to copy the elements to an array. You must allocate the array yourself.

Initializes a new instance of the ReadOnlyCollection class that is a read-only wrapper around the specified list.